Millie Mackintosh back in her favourite pre-pregnancy jeans six months after ...

She welcomed her first child, daughter Sienna earlier this year.

And Millie Mackintosh has proudly shared a milestone in her postpartum health, revealing she fits back into her favourite pair of jeans.

Sharing a photo of herself posing in her denims, the ex Made In Chelsea star told her Instagram followers it felt 'like a win' six months after giving birth.  

Looking fab! Millie Mackintosh has proudly shared a milestone in her postpartum health, revealing she fits back into her favourite pair of jeans

Looking fab! Millie Mackintosh has proudly shared a milestone in her postpartum health, revealing she fits back into her favourite pair of jeans

The photo showed the new mum looking confident as she snapped a selfie in her bedroom, captioning the photo: 

'First time back in a pair of my favourite pre pregnancy jeans! It took a while to get them on and sitting down is challenging but it still feels like a win #postpartumbody #6monthspostpartum.'     

Millie gave birth to her first child, Sienna, with fellow Made in Chelsea alum Hugo Taylor, 34, back in May. 

And on Saturday, the 31-year-old reflected on her relationship to her body post-pregnancy, in a beautifully written 'love letter' that was candid about her body confidence issues.  

Win: Sharing a photo of herself posing in her denims, the ex Made In Chelsea star told her Instagram followers it felt 'like a win' six months after giving birth

Win: Sharing a photo of herself posing in her denims, the ex Made In Chelsea star told her Instagram followers it felt 'like a win' six months after giving birth

Candid: Millie reflected on her relationship to her body post-pregnancy, in a beautifully written 'love letter' that was candid about her body confidence issues on Saturday (pictured in September)

Candid: Millie reflected on her relationship to her body post-pregnancy, in a beautifully written 'love letter' that was candid about her body confidence issues on Saturday (pictured in September) 

The reality star described 'damaging' her strawberry blonde hair to such a degree that it took 'ten years' to get it back to its original colour. 

While she also admitted to planning a boob job and even 'abusing' her stomach in her younger years. 

Of her skin, she wrote: 'Starting in my early teens, and reappearing recently as adult acne, my breakouts have the power to reduce me to tears and destroy my body confidence.' 

Of her boobs, Millie penned: 'I stuffed my bras with cotton wool and often wore two for maximum

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